1997 Prevost XL40.

m-werx · November 25, 2019, 05:23:30 PM

Hi guys we have been offered a 1997 Prevost XL40, Still a seated bus, It has a Detroit 50 series engine, Auto trans, any useful information on a 50 series gratefully received, We are thinking about installing a big CAT or Cummins in place of this engine. Thanks Malcolm.

buswarrior · November 25, 2019, 06:05:17 PM

Interesting... S50, not S60?

S50 is a capable mover.

If you want to $wap, be sure engine room is deep enough for 6 cylinders in a row.

Can't remember which year the 40 footer got the bigger engine room, vs the short 2-stroke v8 engine room.

Happy coaching!
Buswarrior

luvrbus · November 25, 2019, 06:24:04 PM

A 1997 should be a series 60,the 1994 model swung both ways they could have a 8v92 or a series 60 all were series 60 from 1995 the 11.1 or the 12.7 the later ones were the 14L till Detroit stopped selling to Volvo

robertglines1 · November 25, 2019, 06:56:39 PM

prevostcar.com enter last letter in serial number (prob) V then last 4 numbers(unit number) should tell you how it was built.. Clifford is rite on with engine changeover years. That year should have rear tag that can except 60 series. That was changed about 94 area.

DoubleEagle · November 25, 2019, 08:20:02 PM

It might have been changed from the original, look on the valve cover for Detroit Diesel Spec labels. They will give all the details if they are still intact. Depending on the horsepower level, if it is a Series 50, it may be entirely adequate and fuel efficient.

m-werx · November 26, 2019, 05:57:14 AM

Thanks for the reply's , going to take some battery's & see if we can start it , its been sat over a year . will have a better look @ the valve cover ,

muldoonman · November 27, 2019, 08:53:54 AM

Quote from: robertglines1 on November 25, 2019, 06:56:39 PM
prevostcar.com That year should have rear tag that can except 60 series. That was changed about 94 area.

Wonder if the tag can be changed from a 94 model XL to a 91XL to except the longer engines. Would frames be different? My 8V92TA is still running strong but you never know.

buswarrior · November 27, 2019, 10:11:05 AM

The whole rear of the coaches went under re-engineering to accept the inline 6 cylinder 4 stroke engines, both prevost and mci.

The tag axle itself was just a part of a bigger job.

The small package of the detroit v8 had been well taken advantage of by the bus manufactures, the entire rear of the bus was built around that footprint, and 2 stroke twisting forces.

Happy coaching!
Buswarrior

TomC · November 28, 2019, 11:20:18 AM

When Greyhound swapped out the 6V-92TA for Series 50 in their 8's, the S50 is so efficient, they were able to remove one of the radiators and replace it with the air to air intercooler. Mileage jumped from 6-10. Series 50 can be set at 350hp and 1,100lb/ft torque. In my opinion, the perfect motorhome engine. Couple things-course the bull gear just like the Series 60 needs to be checked about every 500,000 miles. S50 has twin rotating balance shafts in the crankcase that should be replaced every 300,000 miles. And be sure to use the big cushy soft engine mounts since the S50 vibrates a bit at idle. Great engine-don't change it. Good Luck, TomC

m-werx · November 28, 2019, 01:12:37 PM

Hi, We found out that the coach has a 60 series engine, have not had chance to try and start it yet! But have got some more questions, Is there anywhere to sell the seats to, Also the over head bins, and the over the road AC unit.

Next. I know Robert Glines. Has installed slides etc... in his coach, Wondering if we could get the plans for slides he used, and a list of parts suppliers.

If the motor runs good we will buy it. and don't mind paying for this information.

Thanks
Malcolm.

DoubleEagle · November 28, 2019, 04:56:44 PM

You would help yourself a lot if you indicated where you and the bus in question are located. Take plenty of pictures, we could have identified the engine right away. Take pictures of the parts you would be getting rid of so people can see their condition.

robertglines1 · November 28, 2019, 05:41:20 PM

slides not for the faint of heart..Takes twice as much time as rest of build. seats if you can get someone to take them out for the seats. Your way ahead. Overhead racks are a 100$ worth of scrap alum or save the alum to build things out of. Best way out the passenger side windshield (from Prevost parts around 200$ delivered to you if you break it)also good way to bring cabinets & tops /appliances etc in. Over the road air=if it works keep it.. if not a couple hundred scrap for could also good market ($300) for used air conditioner compressor. Air ducts along bottom inside of coach are stainless. use or scrap. Will be real nasty inside!! Prevost uses top grade plywood in floors/2-layers 3/4. etc etc etc. Ask questions? plan on 3 times the time and budget. Welcome to nuts=busnuts. If it is a hobby go for it! If you need it now buy a done conversion then change things you don't like. Keep it as lite as possible=better gas mileage.

DoubleEagle · November 28, 2019, 07:03:29 PM

Bob is right, you had better think hard about doing something like that. It is a massive restructuring of the frame, not to be done haphazardly. Take a look at the pictures of an 1974 Eagle that is listed on ebay (eBay item number:1924693063120). It has been sitting for a long time completely stripped to the frame because the owner decided to install a slideout. It looks like his widow or fed-up wife put it up for sale. It's been for sale a long time.

Unless you are young, very wealthy, or extremely handy, you might have better things to do. Don't forget about the possibility of water leaks you might have to live with.

m-werx · November 30, 2019, 09:30:16 AM

Hi Guys, Yes we know this is not going to be a five minute job, What we want to do is two slides on one side, Going to use mini-split for AC. Already have, Cummings onan, Diesel generator. / Trace 4000 watt true sign wave inverter, with trace transfer switch, Going to replace all the suspension bushing & dog bones / airbags, Plus and wheel or brake work that might need doing. Probably do a in-frame on the engine, The peace we need help with are the dimensions of the slide out & materials you guys are using. Any measurements, and where you purchased your drive gear for the slide out. If we can beg, steal or borrow that information, would be greatly appreciated. We are lucky to have a shop full of equipment, welders Mills drill etc, to complete this project.

Thanks
Malcolm.

m-werx · November 30, 2019, 09:34:17 AM

Quote from: DoubleEagle on November 28, 2019, 07:03:29 PM
Bob is right, you had better think hard about doing something like that. It is a massive restructuring of the frame, not to be done haphazardly. Take a look at the pictures of an 1974 Eagle that is listed on ebay (eBay item number:1924693063120). It has been sitting for a long time completely stripped to the frame because the owner decided to install a slideout. It looks like his widow or fed-up wife put it up for sale. It's been for sale a long time. Unless you are young, very wealthy, or extremely handy, you might have better things to do. Don't forget about the possibility of water leaks you might have to live with.

Hi, Yea we knew about the eagle, Yes the owner passed away, thought about it very hard, but i understand the coach was in Canada, The cost of transport would have been more that the bus, plus that not accounting for customs issues.

Thanks
Malcolm.